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2 years ago

Write a program to output 3 lines of text with the following information:

Computers and Technology

1 answer:

mojhsa [17]2 years ago

7 0

Answer:

C LANG

#include <stdio.h>

// function main begins program execution

int main( void )

{

printf( "student's first name" );

} // end function main

PYTHON

student's name=''

born_date=''

class=''

print ('')

Explanation:

create an sql database rows and Columns then use sql commands to call any specific data if so :

(you have a complet database of students data)

SELECT born_date

FROM students

//(Call all students born_date )

//you can specify

********,*********

to create an sql table

CREATE TABLE students (

name char,

born_date int,

class int,

);

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What two actions does the RETI instruction perf orm? Why must these two actions be done in a single instruction, as opposed to a

Bas_tet [7]

Answer:

In assembly language, two instructions control the use of the assembly language procedure.

CALL
RET

CALL pushed the control to the return address onto the stack and transferred the control.

RET instruction returns the address that placed on the stack by a call instruction.

Explanation:

Action RET instruction

The RET instruction pops the address and returns off the stack, which is pointed by the stack pointer.
The stack is LIFO in memory at a particular location, and the pointer points offset from the stack location.

RET instruction does its job by consulting the register and memory state at the point when it is executed.

In RET instruction, only register and memory state is executed. Call instruction must save that address that figure out in a register and memory location.

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3 years ago

What Is an Antivirus?

wariber [46]

Antivirus software, or anti-virus software, also known as anti-malware, is a computer program used to prevent, detect, and remove malware. Antivirus software was originally developed to detect and remove computer viruses, hence the name.

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3 years ago

Read 2 more answers

Taking a suitable example in c language explain the of call by value and call by reference concepts.

Degger [83]

Answer: The difference between call by value and call by reference is that in call by value the actual parameters are passed into the function as arguments whereas in call by reference the address of the variables are sent as parameters.

Explanation:

Some examples are:

call by value

#include <stdio.h>

void swap(int, int);

int main()

{ int a = 10, b= 20;

swap(a, b);

printf("a: %d, b: %d\n", a, b);

}

void swap(int c, int d)

{

int t;

t = c; c = d; d = t;

}

OUTPUT

a: 10, b: 20

The value of a and b remain unchanged as the values are local

//call by reference

#include <stdio.h>

void swap(int*, int*);

int main()

{

int a = 10, b = 20;

swap(&a, &b); //passing the address

printf("a: %d, b: %d\n", a, b);

}

void swap(int *c, int *d)

{

int t;

t = *c; *c = *d; *d = t;

}

OUTPUT

a: 20, b: 10

due to dereferencing by the pointer the value can be changed which is call by reference

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3 years ago

Is it safe to turn on a computer without ram?

swat32

Well, it is safe to turn a computer on without a RAM, but you can't really do it. RAM is one of the essential components in computers without which you can't really use a computer. You can turn it on, however, nothing will appear on your screen and the system won't boot. So, technically, it is safe, but it won't do anything to your computer as it cannot run without RAM.

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3 years ago

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Describe the concepts of confidentiality, integrity, and availability (C-I-A), and explain each of the seven domains of a typica

GREYUIT [131]

Answer:

Answer explained below. The remaining part of the question is incomplete

Explanation:

The concepts of confidentiality, integrity, and availability (C-I-A) can be explained in following given points.

1) Confidentiality: Its basically refer to the confidentiality of the information. Here we can think about the protection of the information from unauthorized person. Confidentiality enuser that at what level your information is secured and no unauthorized access will be done to the information. For maintaining the confidentiality, we can use various encryption methods. The main concept of confidentiality is to enforce various techniques like encryption, file permissions and access control to restrict access to important information.

2) Integrity: Integrity of the information refer to the unwanted modification of the information. Integrity of the data as well as the information should be maintained and only the autorized person can access as well as modify the information. For enforcing the integrity, we can implement various hashing techniques on information.

3) Availability: Availability refers to the availability of the information, when ever an autorized person requests for the information. High availability of the information should occur, so that any autorized person can access it, when ever its required. For high availability, we can create backup as well as replicate the data across the geo sites.

Seven domains of a typical IT infrastructure are given below:

1) User Domain: Its refer to the group of users as well as the person who access the information systems.

2) LAN Domain: Refer to the local area network, where various computers are connected to each other.

3) Workstation Domain: The area is called workstation, where various users connect to the IT infrastructure.

4) WAN and LAN link domain: Refer to the connection of local area network to wide area network.

5) WAN domain: Refer to the wide area network, connection of computers in large area.

6) Storage Domain: Refer to the storage, where we store the data.

7) Remote Access Domain: Refer to the domain where mobile user can access the local as well as wide network remotely.

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